doc: Update the XBlock Tutorial Getting Started section

docs/xblock-tutorial/getting_started/prereqs.rst

@@ -1,8 +1,8 @@
 .. _Install XBlock Prerequisites:
 
-################################
+############################
 Install XBlock Prerequisites
-################################
+############################
 
 To build an XBlock, you must have the following tools on your computer.
 
@@ -11,31 +11,31 @@ To build an XBlock, you must have the following tools on your computer.
  :depth: 1
 
 
-***********
+**********
 Python 3.8
-***********
+**********
 
 To run the a virtual environment and the XBlock SDK, and to build an XBlock,
 you must have Python 3.8 installed on your computer.
 
 `Download Python`_ for your operating system and follow the installation
 instructions.
 
-****
+***
 Git
-****
+***
 
-EdX repositories, including XBlock and the XBlock SDK, are stored on GitHub.
+Open edX repositories, including XBlock and the XBlock SDK, are stored on GitHub.
 
 To build your own XBlock, and to deploy it later, you must use Git for source
 control.
 
 If you do not have Git installed, or you are are unfamiliar with the tool, see
 the `GitHub Help`_.
 
-************************
+*********************
 A Virtual Environment
-************************
+*********************
 
 It is recommended that you develop your XBlock using a Python virtual
 environment. A virtual environment is a tool to keep the dependencies required

docs/xblock-tutorial/getting_started/setup_sdk.rst

@@ -1,8 +1,8 @@
 .. _Set Up the XBlock Software Development Kit:
 
-###########################################
+##########################################
 Set Up the XBlock Software Development Kit
-###########################################
+##########################################
 
 Before you continue, make sure that you are familiar with the subjects in the
 :ref:`Install XBlock Prerequisites` section.
@@ -14,9 +14,9 @@ SDK`_ in a virtual environment. To do this, complete the following steps.
  :local:
  :depth: 1
 
-********************************************
+**********************************
 Create a Directory for XBlock Work
-********************************************
+**********************************
 
 It is recommended that you create a directory in which to store all your XBlock
 work, including a virtual environment, the XBlock SDK, and the XBlocks you
@@ -38,11 +38,12 @@ develop.
 
 .. _Create and Activate the Virtual Environment:
 
-********************************************
+*******************************************
 Create and Activate the Virtual Environment
-********************************************
+*******************************************
 
-You must have a virtual environment tool installed on your computer. For more information, see :ref:`Install XBlock Prerequisites`.
+You must have a virtual environment tool installed on your computer. For more
+information, see :ref:`Install XBlock Prerequisites`.
 
 Then create the virtual environment in your ``xblock_development`` directory.
 
@@ -68,6 +69,8 @@ Then create the virtual environment in your ``xblock_development`` directory.
 
 .. include:: ../reusable/clone_sdk.rst
 
-When the requirements are installed, you are in the ``xblock_development`` directory, which contains the ``venv`` and ``xblock-sdk`` subdirectories. You can now :ref:`create your first XBlock <Create Your First XBlock>`.
+When the requirements are installed, you are in the ``xblock_development``
+directory, which contains the ``venv`` and ``xblock-sdk`` subdirectories. You
+can now :ref:`create your first XBlock <Create Your First XBlock>`.
 
 .. include:: ../../links.rst